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使用 Linux LiveCD~[转自developerWorks]
liveCD的介绍:
A LiveCD is an operating system (that usually contains other software as well) stored on a bootable CD-ROM that can be executed from it, without installation on a hard drive. The system returns to its previous OS when the LiveCD is ejected and the computer is rebooted.
One can use a ready CD or burn an ISO image downloaded from the internet. Because of the large size of the image files many people use a download manager for this.
Some LiveCDs come with an installation utility launchable from a desktop icon that can optionally install the system on a hard drive or USB keydrive. Most LiveCDs can access the information on internal and/or external harddrives, diskettes and USB Flash memories (i.e. to store data -home directory- or to be used like rescue systems).
For example, in Dynebolic the nest file is called dynebol.nst and it keeps all your home and settings inside (/home, /etc, /var, /tmp). The available space for your nest is found by dyne:bolic through your partitions on harddisk or USB storage devices (like USB pens, smartcards or even photo cameras). This approach doesn't require any change in the data structure of the partitions: just one file is created (dynebol.nst).
Most LiveCDs contain a system based on the Linux kernel, but there are also LiveCDs for other operating systems, like FreeBSD or Microsoft Windows (but most of the latter are illegal). The first LiveCD seems to be DemoLinux, in 2000.
The syslinux utility is used to boot most LiveCDs as well as Linux floppies. On a PC a bootable CD generally conforms to the El Torito specification which treats a special file on the disc (possibly hidden) as a floppy diskette image. Many Linux LiveCDs use a compressed filesystem image (often with the cloop compressed loopback driver).
原文 http://en.wikipedia.org/wiki/Live_CD |
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